Grasshopper 721D2 User Manual

27
IMPORTANT
STEERING LEVER ADJUSTMENT
To adjust steering levers, loosen adjustable nuts
that secure the levers to the lever mounts. This
allows the levers to be moved forwards or back-
wards (refer to Fig. 9). Set levers to a comfortable
position for the operator. Hold levers in an outward
position and tighten adjustable nuts. The levers
must line up when in neutral position and maintain
one inch of clearance between ends of levers. If the
levers are allowed to lean toward the center when
the adjustable nuts are tightened, free play in the
mounting holes may allow the levers to hit each
other.
Adjustable
Nut
1" (25mm)
Adjustable
Nut
99071
Fig. 9
CLUTCH REMOVAL /
REPLACEMENT
1. Remove clutch shield (item 42, page 33).
2. Remove clutch bracket (item 28, page 41).
3. Loosen spring tension (item 26, page 41) on
drive belt idler pulley and remove drive belts
(item 29, page 41).
4. Unplug wires from clutch and remove center
bolt (item 19, page 41). Slide clutch back, then
remove the five hex socket head bolts (item 10,
page 41) to remove clutch and stub shaft to-
gether.
5. Remove clutch from stub shaft.
6. Reverse order to install new clutch.
7. Torque stub shaft bolts to 20 ft lbs (27Nm)
8. Torque clutch bolt to 50 ft lbs (68Nm). Run
clutch 15 minutes, then torque to 50 ft lbs
(68Nm) again.
CLUTCH / BRAKE BURNISHING
A new clutch, or one that has not been
used for three months, will require
burnishing to dress drive surfaces. The
clutch could fail if you do not
accomplish the following procedure.
Place tractor in neutral, start engine and run at fast
idle. Turn clutch switch on 30 seconds and off 30
seconds, five times at half-throttle and repeat five
times at full throttle. The time interval allows the
clutch surface to cool.
the parking brake. Adjust the brake linkage arm
(item 43) if necessary.
Be sure all cotter pins and jam nuts are secured.
30
TRACTOR ASSEMBLY
ItemItem
ItemItem
Item
OrderOrder
OrderOrder
Order
DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No.
No.No.
No.No.
No.
ItemItem
ItemItem
Item
OrderOrder
OrderOrder
Order
DescriptionDescription
DescriptionDescription
Description
No.No.
No.No.
No.
No.No.
No.No.
No.
Item not pictured:
605390 Decal Set 721D
2
(Standard)
605391 Decal Set 721D
2
(Hydraulic Opt.)
01-05088
Rev. 3-07
1 644368 Tractor Frame – Lower
2 643872 Tractor Frame – Upper
3 257037 Rubber Step Bushing
4 243220 Bolt
5 774020 Washer
6 253450 Nut - Nylon Insert
7 283516 Seat Spring
8 253203 Whiz Bolt
9 422127 Seat Spring Cap
10 603858 Throttle Assembly
(includes cable assembly)
323656 Cable Assembly
722009 Throttle Lever Stop
722736 Throttle Stop – Heavy Duty
11 422150 Handle Grip
12 902280 Spacer
243335 Bolt
257040 Washer
13 422040 Tool Box
14 185530 Voltage Regulator 12V
15 693210 Fender Rt.
16 693211 Fender Lt.
17 822635 Trim – Fender Edge
18 483942 Wheel & Tire 22 x 11 x 10 Bar Tread Rt.
19 483943 Wheel & Tire 22 x 11 x 10 Bar Tread Lt.
482483 Tire 22 x 11 x 10 Bar Tread
483420 Wheel 10.00
483946 Wheel & Tire 22 x 10 x 10 Turf Tread (Opt)
482473 Tire 22 x 10 x 10 Turf Tread (Opt)
20 644163 Battery Box
21 754135 Battery Hold Down Bracket
22 644478 Battery Box Lid
23 257020 Washer
24 253440 Nut - Nylon Insert
25 424015 Rubber Bumper
26 693104 Console w/Decal
27 721152 Fill Panel – Console
28 101005 Fuel Prefilter
29 821713 Hose - Fuel Line
30 280261 Hose Clamp
31 603812 Fuel Tank w/Draw Tube
(includes items 34 & 35)
32 643144 Fuel Tank Mounting Bracket
33 141125 Cap w/Fuel Gauge
34 101818 Fuel Draw Tube
35 101817 Fuel Tube
36 280257 Hose Clamp - Spring
37 821740 Hose - Fuel Return Line
38 422065 Square Plug
39 643092 Deck Mount Rt.
40 643093 Deck Mount Lt.
41 247280 Bolt - Carriage-Special
42 282575 Deck Mount Bushing
43 282576 Deck Mount Bushing - Floating (Opt.)
44 253460 Nut - Nylon Insert
45 604346 Foot Platform w/Tread, Bearings
& Blocks
(includes items 46, 47, 55 & 56)
46 420905 Foot Rest Tread
47 422615 Nylon Bearing
48 780673 Pivot Rod – Foot Platform
49 253470 Nut - Nylon Insert
50 424052 Rubber Bumper
51 603301 Extension – Foot Platform w/Tread
52 420904 Foot Platform Extension Tread
53 247130 Carriage Bolt
54 283312 Compression Spring
55 424100 Foot Rest Block
56 243026 Tap Screw
57 721388 Trash Shield
58 253192 Whiz Bolt
59 253035 Whiz Nut
60 182253 Work Lamp
61 182251 Bezel – Snap Mount
62 780900 Tension Rod
63 253200 Whiz Bolt
64 722062 Cover Panel – Right Fender
65 254431 Speed Nut
66 253043 Whiz Nut
67 427278 Pad – Battery Tray
68 253173 Whiz Bolt
69 253175 Whiz Bolt
70 253025 Whiz Nut
71 253176 Whiz Bolt - Truss
72 729230 Reinforcement – Brake Pin
73 424458 Vinyl Tubing

Grasshopper 721D2 Specifications

General

Brand	Grasshopper
Model	721D2
Category	Lawn Mower
Language	English